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215000133 = 32632691013
BaseRepresentation
bin11001101000010…
…10010001000101
3112222120010201220
430310022101011
5420020001013
633200110553
75220320355
oct1464122105
9488503656
10215000133
111003a8867
1260005459
1335709a1a
14207a8b65
1513d1db23
hexcd0a445

215000133 has 16 divisors (see below), whose sum is σ = 289111680. Its totient is φ = 142117184.

The previous prime is 215000117. The next prime is 215000167. The reversal of 215000133 is 331000512.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 215000133 - 24 = 215000117 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215000183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 211735 + ... + 212747.

It is an arithmetic number, because the mean of its divisors is an integer number (18069480).

Almost surely, 2215000133 is an apocalyptic number.

It is an amenable number.

215000133 is a deficient number, since it is larger than the sum of its proper divisors (74111547).

215000133 is a wasteful number, since it uses less digits than its factorization.

215000133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1548.

The product of its (nonzero) digits is 90, while the sum is 15.

The square root of 215000133 is about 14662.8828338768. The cubic root of 215000133 is about 599.0727650192.

Adding to 215000133 its reverse (331000512), we get a palindrome (546000645).

The spelling of 215000133 in words is "two hundred fifteen million, one hundred thirty-three", and thus it is an aban number.

Divisors: 1 3 263 269 789 807 1013 3039 70747 212241 266419 272497 799257 817491 71666711 215000133